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Biomass ashes to produce an alternative alkaline activator for alkali-activated cements
(2022-02-01)
In the last decade, herbaceous and agricultural biomass have been used as an alternative energy source. As consequence, large amounts of residual ashes containing potassium (potassium-rich ashes) have been generated. Olive ...
One-part blast furnace slag mortars activated with almond-shell biomass ash: A new 100% waste-based material
(2020-08-01)
The use of almond-shell biomass ash (ABA) as an alkali source in one-part blast furnace slag (BFS) mortars activation was investigated for the first time. The chemical composition of ABA revealed high alkalinity ash to be ...
Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
(2020-01-10)
Alkali-activated cements (AACs) technology is being widely investigated as a replacement for ordinary Portland cement (OPC) for environmental benefits. Blast furnace slag (BFS) is one of the most well known precursors used ...
Rice straw ash: A potential pozzolanic supplementary material for cementing systems
(Elsevier B.V., 2017-09-01)
Biomass waste from rice straw has many management problems, including field firing causing severe air pollution and natural organic decomposition resulting in methane emission. The conversion of this waste to ashes may ...
Glass-ceramic material from the SiO 2-Al 2O 3-CaO system using sugar-cane bagasse ash (SCBA)
(2011-08-31)
Brazil is the world's largest producer of alcohol and sugar from sugarcane. Currently, sugarcane bagasse is burned in boilers to produce steam and electrical energy, producing a huge volume of ash. The major component of ...
Glass-ceramic material from the SiO 2-Al 2O 3-CaO system using sugar-cane bagasse ash (SCBA)
(2011-08-31)
Brazil is the world's largest producer of alcohol and sugar from sugarcane. Currently, sugarcane bagasse is burned in boilers to produce steam and electrical energy, producing a huge volume of ash. The major component of ...
Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
(2018-07-30)
Alkali activated materials (AAM) are being investigated as an alternative binder that could be more eco-efficient than Portland cement. The effect of olive-stone biomass ash (OBA) on the activation of blast furnace slag ...
Avaliação da atividade pozolânica das cinzas do capim elefante por análise termogravimétrica e ensaio de variação de condutividade elétrica em solução de hidróxido de cálcio
(Universidade Federal de Minas GeraisUFMG, 2017-06-14)
The aim of this work was determining the pozzolanic activity of elephant grass Cameroon ash by thermal analysis. With thermogravimetric results, the appropriate calcining temperature was 600°C. The ashes were milled and ...
Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)(2) pastes
(Elsevier B.V., 2014-12-30)
This work presents the behavior of two elephant grass ashes, as pozzolans, elephant grass cameroon (EGC) and napier (EGN), calcined under controlled conditions (700 degrees C). The ashes were initially submitted to a ...